Canker sores are not contagious and are not related to the herpes simplex virus, also known as cold sores. Canker sores are thought to be caused by: Injuries to the mouth, as seen frequently by contact sports players. Accidentally biting the inside of the cheek or lip may also result in a canker sore.
Mexico has a population of 112,468,855 (July 2010 estimate) and its capital and largest city is Mexico City. Mexico is divided into 32 federal entities, of which 31 are states and one is a federal district. The following is a list of Mexico's 31 states and one federal district arranged by area. The population (as of 2009) and capital of each have also been included for reference.
The State of Chihuahua, Mexico. Historians continue to speculate on the Chihuahua's true origins, but most agree that it leads back to the state of Chihuahua Mexico. Spanning 95,544 miÂ² (247,460 km2) and bordering Texas and New Mexico to the northeast (see map below), Chihuahua is a the largest of Mexico's 32 states.